dolycon CT100 Series - Fault Information and Solutions

CT100 inverter Faults and solutions
144
module may be damaged, please ask for service.
If there is no output voltage, the drive board or output module may be damaged,
please ask for service.
7.2 Fault information and solutions
When the inverter has fault in use, refer to the fault codes and fault states of
F08.16～F08.23.
Table 7-1 Troubleshooting list
Code
Type
Reason
Solution
E.oC1
ACC running
overcurrent
1. The acceleration is too
fast
2. The grid voltage is too
low
3. The inverter power is
too small
1. Increase the ACC time
2. Check the input power
3. Select the inverter of
larger power
E.oC2
DEC running
overcurrent
1. The deceleration is too
fast
2. Load inertia torque is
too large
3. The inverter power is
too small
1. Increase the DEC time
2. Add the appropriate
energy consumption
braking components
3. Select the inverter of
larger power
E.oC3
Constant speed
running
overcurrent
1. Load sudden change
or abnormal
2. The grid voltage is too
low
3. The inverter power is
too small
1. Check load or decrease
load sudden change
2. Check the input power
3. Select the inverter of
larger power
E.oU1
ACC running
overvoltage
1. The input voltage is
abnormal
2. After instantaneous
power failure, restart
the rotating motor
1. Check the input power
2. Avoid restart at stop
E.oU2
DEC running
overvoltage
1. The deceleration is too
fast
2. The load inertia is too
large
3. The input voltage is
abnormal
1. Increase the DEC time
2. Add the appropriate
energy consumption
braking components
3. Check the input power